JPS5286010A - Pre-emphasis circuit - Google Patents
Pre-emphasis circuitInfo
- Publication number
- JPS5286010A JPS5286010A JP253376A JP253376A JPS5286010A JP S5286010 A JPS5286010 A JP S5286010A JP 253376 A JP253376 A JP 253376A JP 253376 A JP253376 A JP 253376A JP S5286010 A JPS5286010 A JP S5286010A
- Authority
- JP
- Japan
- Prior art keywords
- emphasis circuit
- sinal
- resistors
- collector
- transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- ZMRUPTIKESYGQW-UHFFFAOYSA-N propranolol hydrochloride Chemical compound [H+].[Cl-].C1=CC=C2C(OCC(O)CNC(C)C)=CC=CC2=C1 ZMRUPTIKESYGQW-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
- H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE: S/N ratio of video sinal is improved by simple arrangement fabricating diodes and resistors between the collector of transistor and power supply.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP253376A JPS5286010A (en) | 1976-01-12 | 1976-01-12 | Pre-emphasis circuit |
DE19772700874 DE2700874A1 (en) | 1976-01-12 | 1977-01-11 | VIDEO SIGNAL PROCESSING CIRCUIT |
NL7700227A NL7700227A (en) | 1976-01-12 | 1977-01-11 | VIDEO SIGNAL EDITING CIRCUIT. |
GB98177A GB1538692A (en) | 1976-01-12 | 1977-01-11 | Video signal processing circuit |
FR7700768A FR2337978A1 (en) | 1976-01-12 | 1977-01-12 | VIDEO SIGNAL PROCESSING CIRCUIT |
AT13977A AT351088B (en) | 1976-01-12 | 1977-01-12 | VIDEO SIGNAL PROCESSING CIRCUIT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP253376A JPS5286010A (en) | 1976-01-12 | 1976-01-12 | Pre-emphasis circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5286010A true JPS5286010A (en) | 1977-07-16 |
Family
ID=11532008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP253376A Pending JPS5286010A (en) | 1976-01-12 | 1976-01-12 | Pre-emphasis circuit |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5286010A (en) |
AT (1) | AT351088B (en) |
DE (1) | DE2700874A1 (en) |
FR (1) | FR2337978A1 (en) |
GB (1) | GB1538692A (en) |
NL (1) | NL7700227A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55124338A (en) * | 1979-03-14 | 1980-09-25 | Rca Corp | Signal strain attenuating device |
EP0077010B1 (en) * | 1981-10-14 | 1986-03-12 | TELEFUNKEN Fernseh und Rundfunk GmbH | Circuit for reducing the rise-time of the flanks of a video signal, in particular for a video recorder |
DE3307014A1 (en) * | 1983-02-28 | 1984-08-30 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Circuit for improving the image sharpness in a video recorder |
DE3430480C2 (en) * | 1984-08-18 | 1993-11-18 | Grundig Emv | Circuit for predistorting a video signal in frequency-modulated recording |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7204290A (en) * | 1972-03-30 | 1973-03-26 |
-
1976
- 1976-01-12 JP JP253376A patent/JPS5286010A/en active Pending
-
1977
- 1977-01-11 DE DE19772700874 patent/DE2700874A1/en not_active Ceased
- 1977-01-11 NL NL7700227A patent/NL7700227A/en not_active Application Discontinuation
- 1977-01-11 GB GB98177A patent/GB1538692A/en not_active Expired
- 1977-01-12 FR FR7700768A patent/FR2337978A1/en not_active Withdrawn
- 1977-01-12 AT AT13977A patent/AT351088B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AT351088B (en) | 1979-07-10 |
GB1538692A (en) | 1979-01-24 |
DE2700874A1 (en) | 1977-07-21 |
FR2337978A1 (en) | 1977-08-05 |
ATA13977A (en) | 1978-12-15 |
NL7700227A (en) | 1977-07-14 |
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